Description

2,2'-[Methylenebis(Thio)]Dianiline is a specialized aromatic amine derivative featuring a methylene bridge flanked by thioether linkages. This unique molecular structure makes it a valuable intermediate for synthesizing high-performance polymers, particularly polyimides and epoxy resins, where it imparts enhanced thermal stability and chemical resistance. It is primarily sought by manufacturers in the advanced materials, specialty adhesives, and electronics encapsulation sectors for developing next-generation composite materials.

Application

• High-Temperature Polyimide Synthesis: A key monomer for producing polyimide resins with exceptional thermal and oxidative stability, used in aerospace and automotive components.
• Epoxy Curing Agent & Hardener: Functions as a cross-linking agent for epoxy systems, resulting in coatings, adhesives, and composites with superior chemical and moisture resistance.
• Specialty Polymer Modification: Used to modify the backbone of engineering plastics to improve their mechanical properties and processability.
• Pharmaceutical Intermediate: Serves as a building block in the synthesis of certain active pharmaceutical ingredients (APIs) and complex organic molecules.
• Liquid Crystal Polymer (LCP) Production: Employed as a monomeric unit in the manufacture of high-performance LCPs for electronic applications.
• Corrosion-Resistant Coatings: A precursor for formulating advanced protective coatings for industrial and marine environments.

Basic Information

Product Name	2,2'-[Methylenebis(Thio)]Dianiline
CAS No.	57491-68-6
Molecular Formula	C₁₃H₁₄N₂S₂
Molecular Weight	262.39 g/mol
Synonyms	Bis(2-aminophenylthio)methane; 2,2'-Thiobisbenzenamine, α-methylenedi-; 4,4'-Diamino-3,3'-thiobisbenzenemethane; MBTA; Methylenebis(2-aminothiophenol); 2,2'-(Methylenedithio)dianiline; [Methylenebis(thio)]dianiline; 1,1'-[Methylenebis(thio)]bis[2-aminobenzene]
EINECS	Contact for details

Quality Control

Our production of 2,2'-[Methylenebis(Thio)]Dianiline adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed against comprehensive specifications using advanced techniques like HPLC, GC, and NMR. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment, ensuring full traceability and compliance with customer requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. Due to potential light sensitivity, containers should be kept in opaque packaging or dark storage conditions.

Specification

Item	Specification
Appearance	Light yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.